00802459

Component

https://doi.org/10.3141/1716-09

http://scholar.google.com...sson&publication_year=2000

Recent research has indicated that measured contact stress distributions under radial truck tires are highly complex. These stress distributions help to explain near-surface distresses that have become more prevalent since the inception of radial tires, indicating that realistic contact stresses must be considered when pavement response and performance are evaluated. However, because of the complexities involved in measuring contact stresses under tires, obtaining these measurements directly on real pavements is not possible. Consequently, contact stress measurements have been made on systems having rigid foundations with embedded sensors. Therefore, determining whether tire contact stresses measured on a rigid foundation are significantly different from contact stresses under the same tire on an actual pavement is critical. Finite element analyses conducted indicated that both vertical and lateral tire contact stresses measured on rigid foundations accurately represent the contact stresses for the same tire on typical asphalt pavement structures. Some minor differences were observed for thin (50-mm surface) pavements on weak bases, but the correspondence in terms of both distribution and magnitude was still very good. The conclusion was that contact stresses measured by devices with rigid foundations appear to be suitable for predicting response and performance of highway pavements.

This paper appears in Transportation Research Record No. 1716, Pavement Assessment and Testing.

English

p. 73-81

2000

Transportation Research Record

0309066956

Figures (13) ; References (8) ; Tables (1)

Deformation curve; Finite element method; Mathematical models; Mathematical prediction; Measurement; Pavement distress; Pavement performance; Radial ply tires; Stresses; Testing equipment

Contact stresses; Rigid foundations

Data and Information Technology; Highways; Pavements; I23: Properties of Road Surfaces

TRIS, TRB, ATRI

Nov 7 2000 12:00AM

• ACCELERATED PAVEMENT TESTING OF RUTTING PERFORMANCE OF TWO CALTRANS OVERLAY STRATEGIES
• BACKCALCULATION OF THERMALLY DEFORMED CONCRETE PAVEMENTS
• CURVILINEAR BEHAVIOR OF BASE LAYER MODULI FROM DEFLECTION AND SEISMIC METHODS
• DYNAMIC INTERPRETATION OF FALLING WEIGHT DEFLECTOMETER TEST RESULTS: SPECTRAL ELEMENT METHOD
• EFFECT OF MOISTURE ON MODULUS VALUES OF BASE AND SUBGRADE MATERIALS
• ESTIMATING SUBGRADE STIFFNESS AND BEDROCK DEPTH: COMBINED FALLING WEIGHT DEFLECTOMETER AND SIMPLIFIED SPECTRAL ANALYSIS OF SURFACE WAVES MEASUREMENTS
• EVALUATING RUNWAY PAVEMENTS AT SEATTLE-TACOMA INTERNATIONAL AIRPORT: CONTINUOUS DEFLECTION PROFILES MEASURED WITH THE ROLLING DYNAMIC DEFLECTOMETER
• IT'S 10 O'CLOCK: DO YOU KNOW WHERE YOUR SENSORS ARE?
• PERFORMANCE OF SUPERPAVE MIXTURES UNDER ACCELERATED LOAD TESTING
• PERFORMANCE PREDICTION OF LOUISIANA ACCELERATED LOADING FACILITY TEST SECTIONS
• RUTTING OF THIN PAVEMENTS: FULL-SCALE STUDY
• SUPER-ACCELERATED TESTING OF FLEXIBLE PAVEMENT WITH STATIONARY DYNAMIC DEFLECTOMETER
• TEMPERATURE CORRECTION ON FALLING WEIGHT DEFLECTOMETER MEASUREMENTS
• TRUCK TRAVEL TIME AROUND WEIGH STATIONS: EFFECTS OF WEIGH IN MOTION AND AUTOMATIC VEHICLE IDENTIFICATION SYSTEMS
• USING A ROAD SURFACE ANALYZER TO EXPLAIN NOISE CHARACTERISTICS OF PORTLAND CEMENT CONCRETE PAVEMENT SURFACE TEXTURE
• USING TRANSVERSE PROFILE DATA TO COMPUTE PLASTIC DEFORMATION PARAMETERS FOR ASPHALT CONCRETE PAVEMENTS